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Merge branch 'parisc-3.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include <linux/vmalloc.h>
64
65 #include "mvm.h"
66 #include "sta.h"
67 #include "iwl-io.h"
68 #include "iwl-prph.h"
69 #include "debugfs.h"
70 #include "fw-error-dump.h"
71
72 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
73 size_t count, loff_t *ppos)
74 {
75 int ret;
76 u32 scd_q_msk;
77
78 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
79 return -EIO;
80
81 if (sscanf(buf, "%x", &scd_q_msk) != 1)
82 return -EINVAL;
83
84 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
85
86 mutex_lock(&mvm->mutex);
87 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
88 mutex_unlock(&mvm->mutex);
89
90 return ret;
91 }
92
93 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
94 size_t count, loff_t *ppos)
95 {
96 struct iwl_mvm_sta *mvmsta;
97 int sta_id, drain, ret;
98
99 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
100 return -EIO;
101
102 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
103 return -EINVAL;
104 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
105 return -EINVAL;
106 if (drain < 0 || drain > 1)
107 return -EINVAL;
108
109 mutex_lock(&mvm->mutex);
110
111 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
112
113 if (!mvmsta)
114 ret = -ENOENT;
115 else
116 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
117
118 mutex_unlock(&mvm->mutex);
119
120 return ret;
121 }
122
123 static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
124 {
125 struct iwl_mvm *mvm = inode->i_private;
126 int ret;
127
128 if (!mvm)
129 return -EINVAL;
130
131 mutex_lock(&mvm->mutex);
132 if (!mvm->fw_error_dump) {
133 ret = -ENODATA;
134 goto out;
135 }
136
137 file->private_data = mvm->fw_error_dump;
138 mvm->fw_error_dump = NULL;
139 kfree(mvm->fw_error_sram);
140 mvm->fw_error_sram = NULL;
141 mvm->fw_error_sram_len = 0;
142 ret = 0;
143
144 out:
145 mutex_unlock(&mvm->mutex);
146 return ret;
147 }
148
149 static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
150 char __user *user_buf,
151 size_t count, loff_t *ppos)
152 {
153 struct iwl_fw_error_dump_file *dump_file = file->private_data;
154
155 return simple_read_from_buffer(user_buf, count, ppos,
156 dump_file,
157 le32_to_cpu(dump_file->file_len));
158 }
159
160 static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
161 struct file *file)
162 {
163 vfree(file->private_data);
164
165 return 0;
166 }
167
168 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
169 size_t count, loff_t *ppos)
170 {
171 struct iwl_mvm *mvm = file->private_data;
172 const struct fw_img *img;
173 unsigned int ofs, len;
174 size_t ret;
175 u8 *ptr;
176
177 if (!mvm->ucode_loaded)
178 return -EINVAL;
179
180 /* default is to dump the entire data segment */
181 img = &mvm->fw->img[mvm->cur_ucode];
182 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
183 len = img->sec[IWL_UCODE_SECTION_DATA].len;
184
185 if (mvm->dbgfs_sram_len) {
186 ofs = mvm->dbgfs_sram_offset;
187 len = mvm->dbgfs_sram_len;
188 }
189
190 ptr = kzalloc(len, GFP_KERNEL);
191 if (!ptr)
192 return -ENOMEM;
193
194 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
195
196 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
197
198 kfree(ptr);
199
200 return ret;
201 }
202
203 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
204 size_t count, loff_t *ppos)
205 {
206 const struct fw_img *img;
207 u32 offset, len;
208 u32 img_offset, img_len;
209
210 if (!mvm->ucode_loaded)
211 return -EINVAL;
212
213 img = &mvm->fw->img[mvm->cur_ucode];
214 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
215 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
216
217 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
218 if ((offset & 0x3) || (len & 0x3))
219 return -EINVAL;
220
221 if (offset + len > img_offset + img_len)
222 return -EINVAL;
223
224 mvm->dbgfs_sram_offset = offset;
225 mvm->dbgfs_sram_len = len;
226 } else {
227 mvm->dbgfs_sram_offset = 0;
228 mvm->dbgfs_sram_len = 0;
229 }
230
231 return count;
232 }
233
234 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
235 size_t count, loff_t *ppos)
236 {
237 struct iwl_mvm *mvm = file->private_data;
238 struct ieee80211_sta *sta;
239 char buf[400];
240 int i, pos = 0, bufsz = sizeof(buf);
241
242 mutex_lock(&mvm->mutex);
243
244 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
245 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
246 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
247 lockdep_is_held(&mvm->mutex));
248 if (!sta)
249 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
250 else if (IS_ERR(sta))
251 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
252 PTR_ERR(sta));
253 else
254 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
255 sta->addr);
256 }
257
258 mutex_unlock(&mvm->mutex);
259
260 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
261 }
262
263 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
264 char __user *user_buf,
265 size_t count, loff_t *ppos)
266 {
267 struct iwl_mvm *mvm = file->private_data;
268 char buf[64];
269 int bufsz = sizeof(buf);
270 int pos = 0;
271
272 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
273 mvm->disable_power_off);
274 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
275 mvm->disable_power_off_d3);
276
277 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
278 }
279
280 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
281 size_t count, loff_t *ppos)
282 {
283 int ret, val;
284
285 if (!mvm->ucode_loaded)
286 return -EIO;
287
288 if (!strncmp("disable_power_off_d0=", buf, 21)) {
289 if (sscanf(buf + 21, "%d", &val) != 1)
290 return -EINVAL;
291 mvm->disable_power_off = val;
292 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
293 if (sscanf(buf + 21, "%d", &val) != 1)
294 return -EINVAL;
295 mvm->disable_power_off_d3 = val;
296 } else {
297 return -EINVAL;
298 }
299
300 mutex_lock(&mvm->mutex);
301 ret = iwl_mvm_power_update_device(mvm);
302 mutex_unlock(&mvm->mutex);
303
304 return ret ?: count;
305 }
306
307 #define BT_MBOX_MSG(_notif, _num, _field) \
308 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
309 >> BT_MBOX##_num##_##_field##_POS)
310
311
312 #define BT_MBOX_PRINT(_num, _field, _end) \
313 pos += scnprintf(buf + pos, bufsz - pos, \
314 "\t%s: %d%s", \
315 #_field, \
316 BT_MBOX_MSG(notif, _num, _field), \
317 true ? "\n" : ", ");
318
319 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
320 size_t count, loff_t *ppos)
321 {
322 struct iwl_mvm *mvm = file->private_data;
323 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
324 char *buf;
325 int ret, pos = 0, bufsz = sizeof(char) * 1024;
326
327 buf = kmalloc(bufsz, GFP_KERNEL);
328 if (!buf)
329 return -ENOMEM;
330
331 mutex_lock(&mvm->mutex);
332
333 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
334
335 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
336 BT_MBOX_PRINT(0, LE_PROF1, false);
337 BT_MBOX_PRINT(0, LE_PROF2, false);
338 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
339 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
340 BT_MBOX_PRINT(0, INBAND_S, false);
341 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
342 BT_MBOX_PRINT(0, LE_SCAN, false);
343 BT_MBOX_PRINT(0, LE_ADV, false);
344 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
345 BT_MBOX_PRINT(0, OPEN_CON_1, true);
346
347 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
348
349 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
350 BT_MBOX_PRINT(1, IP_SR, false);
351 BT_MBOX_PRINT(1, LE_MSTR, false);
352 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
353 BT_MBOX_PRINT(1, MSG_TYPE, false);
354 BT_MBOX_PRINT(1, SSN, true);
355
356 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
357
358 BT_MBOX_PRINT(2, SNIFF_ACT, false);
359 BT_MBOX_PRINT(2, PAG, false);
360 BT_MBOX_PRINT(2, INQUIRY, false);
361 BT_MBOX_PRINT(2, CONN, false);
362 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
363 BT_MBOX_PRINT(2, DISC, false);
364 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
365 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
366 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
367 BT_MBOX_PRINT(2, SCO_DURATION, true);
368
369 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
370
371 BT_MBOX_PRINT(3, SCO_STATE, false);
372 BT_MBOX_PRINT(3, SNIFF_STATE, false);
373 BT_MBOX_PRINT(3, A2DP_STATE, false);
374 BT_MBOX_PRINT(3, ACL_STATE, false);
375 BT_MBOX_PRINT(3, MSTR_STATE, false);
376 BT_MBOX_PRINT(3, OBX_STATE, false);
377 BT_MBOX_PRINT(3, OPEN_CON_2, false);
378 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
379 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
380 BT_MBOX_PRINT(3, INBAND_P, false);
381 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
382 BT_MBOX_PRINT(3, SSN_2, false);
383 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
384
385 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
386 notif->bt_status);
387 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
388 notif->bt_open_conn);
389 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
390 notif->bt_traffic_load);
391 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
392 notif->bt_agg_traffic_load);
393 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
394 notif->bt_ci_compliance);
395 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
396 le32_to_cpu(notif->primary_ch_lut));
397 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
398 le32_to_cpu(notif->secondary_ch_lut));
399 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
400 le32_to_cpu(notif->bt_activity_grading));
401 pos += scnprintf(buf+pos, bufsz-pos,
402 "antenna isolation = %d CORUN LUT index = %d\n",
403 mvm->last_ant_isol, mvm->last_corun_lut);
404
405 mutex_unlock(&mvm->mutex);
406
407 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
408 kfree(buf);
409
410 return ret;
411 }
412 #undef BT_MBOX_PRINT
413
414 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
415 size_t count, loff_t *ppos)
416 {
417 struct iwl_mvm *mvm = file->private_data;
418 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
419 char buf[256];
420 int bufsz = sizeof(buf);
421 int pos = 0;
422
423 mutex_lock(&mvm->mutex);
424
425 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
426 pos += scnprintf(buf+pos, bufsz-pos,
427 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
428 le64_to_cpu(cmd->bt_primary_ci),
429 !!cmd->co_run_bw_primary);
430 pos += scnprintf(buf+pos, bufsz-pos,
431 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
432 le64_to_cpu(cmd->bt_secondary_ci),
433 !!cmd->co_run_bw_secondary);
434
435 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
436 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
437 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
438 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
439 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
440
441 mutex_unlock(&mvm->mutex);
442
443 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
444 }
445
446 static ssize_t
447 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
448 size_t count, loff_t *ppos)
449 {
450 u32 bt_tx_prio;
451
452 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
453 return -EINVAL;
454 if (bt_tx_prio > 4)
455 return -EINVAL;
456
457 mvm->bt_tx_prio = bt_tx_prio;
458
459 return count;
460 }
461
462 #define PRINT_STATS_LE32(_str, _val) \
463 pos += scnprintf(buf + pos, bufsz - pos, \
464 fmt_table, _str, \
465 le32_to_cpu(_val))
466
467 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
468 char __user *user_buf, size_t count,
469 loff_t *ppos)
470 {
471 struct iwl_mvm *mvm = file->private_data;
472 static const char *fmt_table = "\t%-30s %10u\n";
473 static const char *fmt_header = "%-32s\n";
474 int pos = 0;
475 char *buf;
476 int ret;
477 /* 43 is the size of each data line, 33 is the size of each header */
478 size_t bufsz =
479 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
480 (4 * 33) + 1;
481
482 struct mvm_statistics_rx_phy *ofdm;
483 struct mvm_statistics_rx_phy *cck;
484 struct mvm_statistics_rx_non_phy *general;
485 struct mvm_statistics_rx_ht_phy *ht;
486
487 buf = kzalloc(bufsz, GFP_KERNEL);
488 if (!buf)
489 return -ENOMEM;
490
491 mutex_lock(&mvm->mutex);
492
493 ofdm = &mvm->rx_stats.ofdm;
494 cck = &mvm->rx_stats.cck;
495 general = &mvm->rx_stats.general;
496 ht = &mvm->rx_stats.ofdm_ht;
497
498 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
499 "Statistics_Rx - OFDM");
500 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
501 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
502 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
503 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
504 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
505 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
506 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
507 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
508 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
509 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
510 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
511 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
512 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
513 ofdm->rxe_frame_limit_overrun);
514 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
515 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
516 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
517 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
518 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
519 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
520 PRINT_STATS_LE32("reserved", ofdm->reserved);
521
522 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
523 "Statistics_Rx - CCK");
524 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
525 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
526 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
527 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
528 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
529 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
530 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
531 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
532 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
533 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
534 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
535 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
536 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
537 cck->rxe_frame_limit_overrun);
538 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
539 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
540 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
541 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
542 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
543 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
544 PRINT_STATS_LE32("reserved", cck->reserved);
545
546 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
547 "Statistics_Rx - GENERAL");
548 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
549 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
550 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
551 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
552 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
553 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
554 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
555 PRINT_STATS_LE32("adc_rx_saturation_time",
556 general->adc_rx_saturation_time);
557 PRINT_STATS_LE32("ina_detection_search_time",
558 general->ina_detection_search_time);
559 PRINT_STATS_LE32("beacon_silence_rssi_a",
560 general->beacon_silence_rssi_a);
561 PRINT_STATS_LE32("beacon_silence_rssi_b",
562 general->beacon_silence_rssi_b);
563 PRINT_STATS_LE32("beacon_silence_rssi_c",
564 general->beacon_silence_rssi_c);
565 PRINT_STATS_LE32("interference_data_flag",
566 general->interference_data_flag);
567 PRINT_STATS_LE32("channel_load", general->channel_load);
568 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
569 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
570 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
571 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
572 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
573 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
574 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
575 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
576 PRINT_STATS_LE32("mac_id", general->mac_id);
577 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
578
579 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
580 "Statistics_Rx - HT");
581 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
582 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
583 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
584 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
585 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
586 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
587 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
588 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
589 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
590 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
591
592 mutex_unlock(&mvm->mutex);
593
594 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
595 kfree(buf);
596
597 return ret;
598 }
599 #undef PRINT_STAT_LE32
600
601 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
602 char __user *user_buf, size_t count,
603 loff_t *ppos,
604 struct iwl_mvm_frame_stats *stats)
605 {
606 char *buff, *pos, *endpos;
607 int idx, i;
608 int ret;
609 static const size_t bufsz = 1024;
610
611 buff = kmalloc(bufsz, GFP_KERNEL);
612 if (!buff)
613 return -ENOMEM;
614
615 spin_lock_bh(&mvm->drv_stats_lock);
616
617 pos = buff;
618 endpos = pos + bufsz;
619
620 pos += scnprintf(pos, endpos - pos,
621 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
622 stats->legacy_frames,
623 stats->ht_frames,
624 stats->vht_frames);
625 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
626 stats->bw_20_frames,
627 stats->bw_40_frames,
628 stats->bw_80_frames);
629 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
630 stats->ngi_frames,
631 stats->sgi_frames);
632 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
633 stats->siso_frames,
634 stats->mimo2_frames);
635 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
636 stats->fail_frames,
637 stats->success_frames);
638 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
639 stats->agg_frames);
640 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
641 stats->ampdu_count);
642 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
643 stats->ampdu_count > 0 ?
644 (stats->agg_frames / stats->ampdu_count) : 0);
645
646 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
647
648 idx = stats->last_frame_idx - 1;
649 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
650 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
651 if (stats->last_rates[idx] == 0)
652 continue;
653 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
654 (int)(ARRAY_SIZE(stats->last_rates) - i));
655 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
656 }
657 spin_unlock_bh(&mvm->drv_stats_lock);
658
659 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
660 kfree(buff);
661
662 return ret;
663 }
664
665 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
666 char __user *user_buf, size_t count,
667 loff_t *ppos)
668 {
669 struct iwl_mvm *mvm = file->private_data;
670
671 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
672 &mvm->drv_rx_stats);
673 }
674
675 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
676 size_t count, loff_t *ppos)
677 {
678 int ret;
679
680 mutex_lock(&mvm->mutex);
681
682 /* allow one more restart that we're provoking here */
683 if (mvm->restart_fw >= 0)
684 mvm->restart_fw++;
685
686 /* take the return value to make compiler happy - it will fail anyway */
687 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
688
689 mutex_unlock(&mvm->mutex);
690
691 return count;
692 }
693
694 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
695 size_t count, loff_t *ppos)
696 {
697 iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
698
699 return count;
700 }
701
702 static ssize_t
703 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
704 char __user *user_buf,
705 size_t count, loff_t *ppos)
706 {
707 struct iwl_mvm *mvm = file->private_data;
708 int pos = 0;
709 char buf[32];
710 const size_t bufsz = sizeof(buf);
711
712 /* print which antennas were set for the scan command by the user */
713 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
714 if (mvm->scan_rx_ant & ANT_A)
715 pos += scnprintf(buf + pos, bufsz - pos, "A");
716 if (mvm->scan_rx_ant & ANT_B)
717 pos += scnprintf(buf + pos, bufsz - pos, "B");
718 if (mvm->scan_rx_ant & ANT_C)
719 pos += scnprintf(buf + pos, bufsz - pos, "C");
720 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
721
722 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
723 }
724
725 static ssize_t
726 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
727 size_t count, loff_t *ppos)
728 {
729 u8 scan_rx_ant;
730
731 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
732 return -EINVAL;
733 if (scan_rx_ant > ANT_ABC)
734 return -EINVAL;
735 if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
736 return -EINVAL;
737
738 mvm->scan_rx_ant = scan_rx_ant;
739
740 return count;
741 }
742
743 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
744 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
745 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
746 char __user *user_buf,
747 size_t count, loff_t *ppos)
748 {
749 struct iwl_mvm *mvm = file->private_data;
750 struct iwl_bcast_filter_cmd cmd;
751 const struct iwl_fw_bcast_filter *filter;
752 char *buf;
753 int bufsz = 1024;
754 int i, j, pos = 0;
755 ssize_t ret;
756
757 buf = kzalloc(bufsz, GFP_KERNEL);
758 if (!buf)
759 return -ENOMEM;
760
761 mutex_lock(&mvm->mutex);
762 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
763 ADD_TEXT("None\n");
764 mutex_unlock(&mvm->mutex);
765 goto out;
766 }
767 mutex_unlock(&mvm->mutex);
768
769 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
770 filter = &cmd.filters[i];
771
772 ADD_TEXT("Filter [%d]:\n", i);
773 ADD_TEXT("\tDiscard=%d\n", filter->discard);
774 ADD_TEXT("\tFrame Type: %s\n",
775 filter->frame_type ? "IPv4" : "Generic");
776
777 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
778 const struct iwl_fw_bcast_filter_attr *attr;
779
780 attr = &filter->attrs[j];
781 if (!attr->mask)
782 break;
783
784 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
785 j, attr->offset,
786 attr->offset_type ? "IP End" :
787 "Payload Start",
788 be32_to_cpu(attr->mask),
789 be32_to_cpu(attr->val),
790 le16_to_cpu(attr->reserved1));
791 }
792 }
793 out:
794 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
795 kfree(buf);
796 return ret;
797 }
798
799 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
800 size_t count, loff_t *ppos)
801 {
802 int pos, next_pos;
803 struct iwl_fw_bcast_filter filter = {};
804 struct iwl_bcast_filter_cmd cmd;
805 u32 filter_id, attr_id, mask, value;
806 int err = 0;
807
808 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
809 &filter.frame_type, &pos) != 3)
810 return -EINVAL;
811
812 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
813 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
814 return -EINVAL;
815
816 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
817 attr_id++) {
818 struct iwl_fw_bcast_filter_attr *attr =
819 &filter.attrs[attr_id];
820
821 if (pos >= count)
822 break;
823
824 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
825 &attr->offset, &attr->offset_type,
826 &mask, &value, &next_pos) != 4)
827 return -EINVAL;
828
829 attr->mask = cpu_to_be32(mask);
830 attr->val = cpu_to_be32(value);
831 if (mask)
832 filter.num_attrs++;
833
834 pos += next_pos;
835 }
836
837 mutex_lock(&mvm->mutex);
838 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
839 &filter, sizeof(filter));
840
841 /* send updated bcast filtering configuration */
842 if (mvm->dbgfs_bcast_filtering.override &&
843 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
844 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
845 sizeof(cmd), &cmd);
846 mutex_unlock(&mvm->mutex);
847
848 return err ?: count;
849 }
850
851 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
852 char __user *user_buf,
853 size_t count, loff_t *ppos)
854 {
855 struct iwl_mvm *mvm = file->private_data;
856 struct iwl_bcast_filter_cmd cmd;
857 char *buf;
858 int bufsz = 1024;
859 int i, pos = 0;
860 ssize_t ret;
861
862 buf = kzalloc(bufsz, GFP_KERNEL);
863 if (!buf)
864 return -ENOMEM;
865
866 mutex_lock(&mvm->mutex);
867 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
868 ADD_TEXT("None\n");
869 mutex_unlock(&mvm->mutex);
870 goto out;
871 }
872 mutex_unlock(&mvm->mutex);
873
874 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
875 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
876
877 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
878 i, mac->default_discard, mac->attached_filters);
879 }
880 out:
881 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
882 kfree(buf);
883 return ret;
884 }
885
886 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
887 char *buf, size_t count,
888 loff_t *ppos)
889 {
890 struct iwl_bcast_filter_cmd cmd;
891 struct iwl_fw_bcast_mac mac = {};
892 u32 mac_id, attached_filters;
893 int err = 0;
894
895 if (!mvm->bcast_filters)
896 return -ENOENT;
897
898 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
899 &attached_filters) != 3)
900 return -EINVAL;
901
902 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
903 mac.default_discard > 1 ||
904 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
905 return -EINVAL;
906
907 mac.attached_filters = cpu_to_le16(attached_filters);
908
909 mutex_lock(&mvm->mutex);
910 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
911 &mac, sizeof(mac));
912
913 /* send updated bcast filtering configuration */
914 if (mvm->dbgfs_bcast_filtering.override &&
915 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
916 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
917 sizeof(cmd), &cmd);
918 mutex_unlock(&mvm->mutex);
919
920 return err ?: count;
921 }
922 #endif
923
924 #ifdef CONFIG_PM_SLEEP
925 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
926 size_t count, loff_t *ppos)
927 {
928 int store;
929
930 if (sscanf(buf, "%d", &store) != 1)
931 return -EINVAL;
932
933 mvm->store_d3_resume_sram = store;
934
935 return count;
936 }
937
938 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
939 size_t count, loff_t *ppos)
940 {
941 struct iwl_mvm *mvm = file->private_data;
942 const struct fw_img *img;
943 int ofs, len, pos = 0;
944 size_t bufsz, ret;
945 char *buf;
946 u8 *ptr = mvm->d3_resume_sram;
947
948 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
949 len = img->sec[IWL_UCODE_SECTION_DATA].len;
950
951 bufsz = len * 4 + 256;
952 buf = kzalloc(bufsz, GFP_KERNEL);
953 if (!buf)
954 return -ENOMEM;
955
956 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
957 mvm->store_d3_resume_sram ? "en" : "dis");
958
959 if (ptr) {
960 for (ofs = 0; ofs < len; ofs += 16) {
961 pos += scnprintf(buf + pos, bufsz - pos,
962 "0x%.4x ", ofs);
963 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
964 bufsz - pos, false);
965 pos += strlen(buf + pos);
966 if (bufsz - pos > 0)
967 buf[pos++] = '\n';
968 }
969 } else {
970 pos += scnprintf(buf + pos, bufsz - pos,
971 "(no data captured)\n");
972 }
973
974 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
975
976 kfree(buf);
977
978 return ret;
979 }
980 #endif
981
982 #define PRINT_MVM_REF(ref) do { \
983 if (test_bit(ref, mvm->ref_bitmap)) \
984 pos += scnprintf(buf + pos, bufsz - pos, \
985 "\t(0x%lx) %s\n", \
986 BIT(ref), #ref); \
987 } while (0)
988
989 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
990 char __user *user_buf,
991 size_t count, loff_t *ppos)
992 {
993 struct iwl_mvm *mvm = file->private_data;
994 int pos = 0;
995 char buf[256];
996 const size_t bufsz = sizeof(buf);
997
998 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",
999 mvm->ref_bitmap[0]);
1000
1001 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1002 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1003 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1004 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1005 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1006 PRINT_MVM_REF(IWL_MVM_REF_USER);
1007
1008 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1009 }
1010
1011 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1012 size_t count, loff_t *ppos)
1013 {
1014 unsigned long value;
1015 int ret;
1016 bool taken;
1017
1018 ret = kstrtoul(buf, 10, &value);
1019 if (ret < 0)
1020 return ret;
1021
1022 mutex_lock(&mvm->mutex);
1023
1024 taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap);
1025 if (value == 1 && !taken)
1026 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1027 else if (value == 0 && taken)
1028 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1029 else
1030 ret = -EINVAL;
1031
1032 mutex_unlock(&mvm->mutex);
1033
1034 if (ret < 0)
1035 return ret;
1036 return count;
1037 }
1038
1039 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1040 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1041 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1042 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1043 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1044 if (!debugfs_create_file(alias, mode, parent, mvm, \
1045 &iwl_dbgfs_##name##_ops)) \
1046 goto err; \
1047 } while (0)
1048 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1049 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1050
1051 static ssize_t
1052 iwl_dbgfs_prph_reg_read(struct file *file,
1053 char __user *user_buf,
1054 size_t count, loff_t *ppos)
1055 {
1056 struct iwl_mvm *mvm = file->private_data;
1057 int pos = 0;
1058 char buf[32];
1059 const size_t bufsz = sizeof(buf);
1060
1061 if (!mvm->dbgfs_prph_reg_addr)
1062 return -EINVAL;
1063
1064 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1065 mvm->dbgfs_prph_reg_addr,
1066 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1067
1068 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1069 }
1070
1071 static ssize_t
1072 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1073 size_t count, loff_t *ppos)
1074 {
1075 u8 args;
1076 u32 value;
1077
1078 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1079 /* if we only want to set the reg address - nothing more to do */
1080 if (args == 1)
1081 goto out;
1082
1083 /* otherwise, make sure we have both address and value */
1084 if (args != 2)
1085 return -EINVAL;
1086
1087 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1088 out:
1089 return count;
1090 }
1091
1092 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1093
1094 /* Device wide debugfs entries */
1095 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1096 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1097 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1098 MVM_DEBUGFS_READ_FILE_OPS(stations);
1099 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1100 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1101 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1102 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1103 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1104 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1105 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1106 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1107 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1108 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1109
1110 static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
1111 .open = iwl_dbgfs_fw_error_dump_open,
1112 .read = iwl_dbgfs_fw_error_dump_read,
1113 .release = iwl_dbgfs_fw_error_dump_release,
1114 };
1115
1116 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1117 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1118 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1119 #endif
1120
1121 #ifdef CONFIG_PM_SLEEP
1122 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1123 #endif
1124
1125 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1126 {
1127 struct dentry *bcast_dir __maybe_unused;
1128 char buf[100];
1129
1130 spin_lock_init(&mvm->drv_stats_lock);
1131
1132 mvm->debugfs_dir = dbgfs_dir;
1133
1134 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1135 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1136 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1137 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1138 MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
1139 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1140 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1141 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
1142 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1143 S_IRUSR | S_IWUSR);
1144 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1145 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1146 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1147 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1148 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1149 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1150 S_IWUSR | S_IRUSR);
1151 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1152 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1153
1154 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1155 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1156 bcast_dir = debugfs_create_dir("bcast_filtering",
1157 mvm->debugfs_dir);
1158 if (!bcast_dir)
1159 goto err;
1160
1161 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1162 bcast_dir,
1163 &mvm->dbgfs_bcast_filtering.override))
1164 goto err;
1165
1166 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1167 bcast_dir, S_IWUSR | S_IRUSR);
1168 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1169 bcast_dir, S_IWUSR | S_IRUSR);
1170 }
1171 #endif
1172
1173 #ifdef CONFIG_PM_SLEEP
1174 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1175 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1176 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1177 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1178 goto err;
1179 #endif
1180
1181 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1182 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1183 goto err;
1184 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1185 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1186 goto err;
1187 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1188 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1189 goto err;
1190 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1191 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1192 goto err;
1193
1194 /*
1195 * Create a symlink with mac80211. It will be removed when mac80211
1196 * exists (before the opmode exists which removes the target.)
1197 */
1198 snprintf(buf, 100, "../../%s/%s",
1199 dbgfs_dir->d_parent->d_parent->d_name.name,
1200 dbgfs_dir->d_parent->d_name.name);
1201 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1202 goto err;
1203
1204 return 0;
1205 err:
1206 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1207 return -ENOMEM;
1208 }
Linux kernel - Deliverables
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